Lenovo think pad mini dock series 3 type 4337 - does the RJ-45 port support Gigabit?

[S_Mess]

I was looking at the specs for the Lenovo think pad mini dock series 3  type 4337 docking station, which my company supplied to me. The ThinkPad that I am using with it has an ethernet port that supports Gigabit speeds, but I can't find any documentation for the docking station and whether it does as well.  Does anyone know how to tell?

http://support.lenovo.com/en_US/product-and-parts/detail.page?DocID=PD014560

[lead_org Microsoft MVP Contributor]

The dock simply provides a pass through function, it supports the same speed as the laptop ethernet port.